The Mother of a Client with Head Lice Has Completed

The mother of a client with head lice has completed the applications of lindane (Kwell) .What is the best instruction by the nurse at this time?

A) "Remove all nits from the hair shaft with a nit comb or a fine-tooth comb."
B) "You are fine now; just watch your child for a re-infection."
C) "Keep your child's hair short so it will be easier to treat next time."
D) "Check the heads of your child's friends before allowing them to play together."